http://jneuroengrehab.biomedcentral.com/articles/10.1186/s12984-015-0094-5
- Jong Hun Kim,
- Byung Hwa Lee,
- Seok Min Go,
- Sang Won Seo,
- Kenneth M. Heilman and
- Duk L. NaEmail author
Journal of NeuroEngineering and Rehabilitation201512:114
DOI: 10.1186/s12984-015-0094-5
© Kim et al. 2015
Received: 24 June 2015
Accepted: 1 November 2015
Published: 15 December 2015
Abstract
Background
Patients with right hemisphere
damage are often unaware of, inattentive to and fail to interact with
stimuli on their left side. This disorder, called hemispatial neglect,
is a major source of disability. Inducing leftward ocular pursuit by
optokinetic stimulation (OKS) relieves some of the signs of unilateral
neglect. However, it is difficult to provide patients with a
continuously moving background that is required for OKS. We studied
whether OKS projected onto a see-through head-mounted display (HMD)
would help treat neglect.
Methods
14 patients with neglect after
cerebral infarction performed line bisections on a computer screen,
both with and without OKS that was either delivered by the HMD or on the
same screen that was displaying the lines that were to be bisected.
Results
The line bisection performances were significantly different in the four conditions (P
< 0.001). The post hoc analyses indicated that the rightward
deviation observed in the control conditions on the line bisection tasks
without OKS, improved significantly with the use OKS in both the HMD
and screen conditions (α < 0.05). The results between the screen and
HMD conditions were also different (α < 0.05). The OKS in the HMD
condition corrected patients’ rightward deviation more toward the actual
midline than did the OKS provided during the screen condition.
Conclusions
OKS projected onto the
see-through HMD improved hemispatial neglect. The development of a
portable device may aid in the treatment of neglect.
No comments:
Post a Comment